Answer
6
Work Step by Step
If k denotes the number of categories, then the degree of freedom: df=k-1=7-1=6.
Essentials of Statistics (5th Edition)
by Triola, Mario F.
Published by
Pearson
ISBN 10:
0-32192-459-2
ISBN 13:
978-0-32192-459-9
Chapter 11 - Chi-Square and Analysis of Variance - 11-2 Goodness-of-Fit - Page 543: 4
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